Carson, W. R. and Chatzigeorgiou, I. and Wassell, I. J. and Rodrigues, M. R. D. and Carrasco, R. (2007) On the performance of iterative demapping and decoding techniques over quasi-static fading channels. In: Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on. IEEE, New York, pp. 1522-1526. ISBN 978-1-4244-1143-6
Full text not available from this repository.Abstract
In this paper, we investigate in detail the performance of iterative demapping and decoding techniques over quasi-static fading channels both with and without antenna diversity. In particular, we consider the effect on the system performance of various mapping schemes, different coding schemes, the inter-leaver size as well as space diversity. Results demonstrate that over quasi-static fading channels characterized by significant antenna diversity, mappings traditionally optimized for iterative receivers (e.g., Boronka mapping) outperform mappings more appropriate for non-iterative receivers (e.g., Gray mapping). In contrast, over quasi-static fading channels characterized by limited antenna diversity, Gray mapping always outperform Boronka mapping for all E-b/N-0 and all iterations. Strikingly, this situation is in sharp contrast to that in the AWGN case. We note that we can further improve the performance of non-iterative systems (e.g., Gray mapping) having limited antenna diversity by increasing the memory size and removing the interleaving.
| Item Type: | Contribution in Book/Report/Proceedings |
|---|---|
| Uncontrolled Keywords: | TURBO-CODES |
| Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science |
| Departments: | Faculty of Science and Technology > School of Computing & Communications |
| ID Code: | 49529 |
| Deposited By: | ep_importer_pure |
| Deposited On: | 22 Aug 2011 14:24 |
| Refereed?: | No |
| Published?: | Published |
| Last Modified: | 26 Jul 2012 22:57 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/49529 |
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